LMG100006:
Ehrenbreitstein and Koblenz from the Heights of Pfaffendorf, 1839 (w/c and gouache on paper), Callow, William (1812-1908) / Bridgeman Images
XCC2972704:
The Entrance to the Harbour of Marseilles, c.1838 (w/c with touches of gouache, over traces of graphite, and scraping, on off-white wove paper), Callow, William (1812-1908) / Bridgeman Images